What's a KEM? What's a lattice? Why are these new keys so large? If you are a software engineer and/or protocol designer that has used cryptography in your project and want to know about this post-quantum stuff, we'll discuss new standards, new primitives like KEMs, how they are different than traditional primitives like Diffie-Hellman, approaches to migration ('wait is hybrid pq/t different than hybrid encryption?') and recent lessons learned about how changing your cryptographic designs aren't really about 'upgrading', they're more like designing something new, and the challenges that come with that.